wellman



2 Sheets-Sheet 1.

(No Model.)

W. P. WELLMAN.

MACHINE EOE CUTTING SHOE SOLES.

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www.

llf @la N. PETERS. Pmmuenngmpm, waihingwn. ucv

2 Sheets-Sheet 2.

(No Model.)

W. F. WELLMAN;

MACHINE EOE CUTTING SHOE SOLES.

No. 391,287. Patented Oct. 16, 1888.

Mii 55555.

Fries.

*' ATENT VILLARD F. \Vl liLl\lAN, OF BOSTON, MASSACHUSETTS, ASSIGNOR, BY MESNF.- ASSIGNMENTS, TOl THE flliLMAN SOLE` CUTTING MACHlNE COMPANY,

OF SAME PLACE.

SPECIFICATION for Application filed December 3, 18H7.

T @ZZ whom, it '//ttty concern:

Be it known that I, Winnaar) FRANK WELL- MAN, of Boston, in the county of Suffolk, in the State of Massachusetts, have invented a new and useful Machine for Cutting Shoc- Soles, of which the following` isaspccification, reference being had to the accompanyingd rawings, in which- Figure l is a side elevation of a machine em- Io bodying my invention. Fig. 2 is a front cle- Vation ofthe same. Fig. 3 is a plan. Fig. 4 is an end view of the preferred f'orm of toolcarrier. Fig. 5 is a side view; Fig. 6, a plan of whatis shown in Fig. Lt. Fig. 7 is a side elevation, partlyin section, of the sole-form; Fig. S, an end View, and Fig. 9 a plan of what is shown in Fig. 7. Fig. lOis aside elevation of the elbow and pulleys, and Fig. 1l a plan of same.

As is well known to all skilled in the art, very great practical difficult-y has been hitherto encountered in cutting rubber soles with beveled edges; and the object of my invention is to produce a machine by which soles, espeeially beveled-cdgc rubber soles, are readily and cheaply cnt.

My invention consists, mainly, in the coml ination,with a clamp for the stock, ofa track, which corresponds to the form of article to be 3o cut and a knife which is adapted to travel in a path' determined by the track. Minor features of my invention are set forth hereinafter.

In the drawings, which show a machine embodying my invention in the best form now known to me, A is the frame, and A the main shaft. In the upper part of frame A. is a fixed stud, a, on which pulleys c c rotate together. Stud c also carries a compound arm, d F, the section d and the section F being jointed to 4o gether by a shaft, b, upon which pulleys b b2 are fixed. The outer end of section F carries a shaft, Iz., having a pulley. h, fixed to it and also a gear, fi, fixed to it. Stud a carries the foot-holder C. The foot D is secured in holder C, and preferably approximates the shape of the piece of stock to be cut out, (in this ease a sole,) and has on its upper surface a groove forming the track f, by means of which the path of the knife is determined. In the form ing part of Letters Patent No. 391,287, dated October 1G, 1888.

Serial No. 256,0;3. (No model.)

of machine shown the edge of foot D is formed 5o with arack, d', and a bevel, g.

Knife-carrier E is preferably formed of' two sections, c c', hinged together by a pin, m, as shown in Fig. 5, each section being provided with a pin, a, and one section having a spurgear, t', fixed to a shaft, h, so that when the tool-carrier is caused to travel the lower ends of pins m and a move in the groove, which in this case forms the track f, and the gear t' meshes with the rack d on foot D.

The stock-support B is preferably provided on its lower surface with pins 3, which slide in holes in frame A. A rocker-shaft,c, mounted in frame A, has fixed to it cams c, which sustain the support B and force the support upward against foot D when treadle 1 is depressed, the treadle being connected with the rocker-shaft c in a way too well known to require description.

The operation of my machine is as follows: 7o Stock being placed on support B, and the snp- `port forced upward to clamp thestock against the foot D, motion from the shaft A is imparted to pulleys c t2 on shaft a, and as pulley ci is belted to pulley b on shaft b, and pulley b2 on shaft b is belted to pulley h, fast to shaft h, the k nife-earrier E, guided by the track f, iscaused to travel in a path corresponding to the track entirely around the foot D, so that a piece of stock corresponding in shape to that of the track is cut from the stock, the knife Fi in thc carrier projecting downwardly through the stock operated on, for when the support B is moved upward the stock upon it is pressed against the point of the knife,which is thereby caused to penetrate through the stock.

It will be obvious that the compound arm d F, being hinged as above described, is free to bend, so that the pins m n of tool-holder E move easily in the groove which forms the track f, and the spur-gear i is kept in contact with the rack d. The sole being cut, pressure on treadle l is relieved, and support B falls, carrying the cams c with it -until they are ar- 95 rested by the levers 4, mounted in frame A, and adapted to be swung to enter notches c in cams c.

Vhen foot D is to be replaced by a foot` of different size or style,the levers 4 4 are moved out of engagement with the cams c, so that the cams fall still lower and the support B moves downwardly to give ample room for removing and replacing the foot D. The foot D is preferably provided with dovctailed lugs dto engage the dovetailcd ends of the footholder C, thcfoot-holder and foot being secured together, say, by cams e2as shown in Fig. 7.

In order to cut a beveled sole edge, as well as one at right angles to the top or bottom snrface ofthe sole, tool-holder Eis provided with a series of mortisess, one vertical and the rest inclined, in which the knife E is readily sccurcd by a set-scrcw,e, as seen best in Fig. 4.

Ireadle 2 controls a friction-clutch on main shaft A in a Way too Well known to require particular description, and the belt from. main shaft A leads from pulley G over idlers 7c to pulley a.

tion of stock-clamp B D, track f, corresponding to the form of the article to be cut, knife E', and means, substantially such as described,l

for causing the knife to travel in a path determined by the track f, substantially as and for the purpose set forth.

2. In combination, support B, foot D, knifecarrier E, knife E', secured in the carrier, the foot D being formed with a track, f, and rack d, and thevcarrier being provided with pins min, and spur-gear i, substantially as and for the purpose set forth.

3. Support B, foot D, knife carrier E, and knife E', secured in carrier E, foot D, having a track, f, and rack d, and carrier E, having pins m u, and gear i, in combination with arm d F, hinged at b and provided with pulleys a a2 b b2 h', and shafts a b h, all substantially as and for the purpose set forth.

4. The k nife-carrier E, herein described, made up of two sections, e e, hinged together and provided with pins m n, and gear fi, substantially as and for'the purpose set forth.

WILLARD n. WELLMA1\I.

Witnesses:

EDWARD S. BEACH, JOHN R. SNOW. 

